Ignition methods and apparatus using microwave energy

Details Ignition methods and apparatus using microwave energy Ignition methods and apparatus using microwave energy

1995-06-05

1997-11-25

Freay, Charles G.

Power plants

Combustion products used as motive fluid

60 39821, 21912136, F02C 726

Patent

active

056899491

ABSTRACT:
An ignition apparatus for a combustor includes a microwave energy source that emits microwave energy into the combustor at a frequency within a resonant response of the combustor, the combustor functioning as a resonant cavity for the microwave energy so that a plasma is produced that ignites a combustible mixture therein. The plasma preferably is a non-contact plasma produced in free space within the resonant cavity spaced away from with the cavity wall structure and spaced from the microwave emitter.

REFERENCES:
patent: 5257500 (1993-11-01), Venkatamani et al.
patent: 5361737 (1994-11-01), Smith et al.
patent: 5367869 (1994-11-01), DeFreitas et al.
patent: 5414235 (1995-05-01), Lucas et al.
patent: 5442907 (1995-08-01), Asquith et al.
CIRA White Paper, RF Quarter--Wave Coaxial Cavity Resonator, Plasma Ignitor, Jul. 1995, pp. 1-4.
Brooke, "Plasma Ignition Returns," Automotive Industries, Feb. 1992, pp. 121, 122 and 124.

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